Re: The Graphs of Function and Relation

Originally Posted by BAdhi

What I would simply do is, since I know how to draw the graph of , draw it and rotate the whole graph 90 degrees so that y and x axis swap there places

Technically, the operation you need to do is reflect the graph about the line y = x. That happens to do the same thing in this case, but in general, the rotation is incorrect. Any time you swap the roles of x and y, you are graphically reflecting about the line y = x.